Finding the Fourth Proportional to 1,434.88, 2,150.56 and 948

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434.88 : 2,150.56 = 948 : x
2. Step 2: Convert to fraction form
   1,434.88/2,150.56 = 948/x
3. Step 3: Cross multiply
   1,434.88x = 2,150.56 × 948
4. Step 4: Simplify right side
   1,434.88x = 2,038,730.88
5. Step 5: Solve for x
   x = 2,038,730.88/1,434.88
6. Step 6: Final answer
   x = 1,420.84